EES-501 Ultrasonic Flowmeter
Reversion: 3.0.1
Page 46 of 51
6
Error Diagnoses
The ultrasonic flowmeter has advanced self-diagnostics functions and displays any errors in the upper right corner
of the LCD via definite codes in a date/time order. Some errors can be detected during normal operation.
Undetectable errors caused by unskilled operation, incorrect settings and unsuitable measurement conditions can
be displayed accordingly during work. This function helps the user detect the errors and find causes quickly; thus,
problems can be solved in a timely manner according to the solutions listed in the following tables.
The error codes caused by incorrect settings and the detected signal can be displayed in Window M08.
6.1
Table 1. Error Codes and Solutions (during operation)
Codes
M08 Display
Causes
Solutions
*R
System Normal.
* System normal.
*I
Signal Not Detected.
* Signal not detected.
* Spacing is not correct
between the transducers
or not enough coupling
compound applied to
face of transducers.
* Transducers installed
improperly.
* Scale is too thick.
* New pipe liner.
* Attach transducer to the pipe and
tighten it securely. Apply a plenty
of coupling compound on
transducer and pipe wall.
* Remove any rust, scale, or loose
paint from the pipe surface. Clean it
with a file.
* Check the initial parameter
settings.
* Remove the scale or change the
scaled pipe section. Normally, it
is possible to change a
measurement location. The
instrument may run properly at a
new site with less scale.
* Wait until liners solidified and
saturated
*G
Adjusting Gain
(Display in Windows M01).
* Adjusting gain for
normal measurement.